Fast and clean tabbed style PDF reader & editor, which make reading & editing enjoyable and efficient.

Key features:

* Tabbed style window;
* PDF Pages Editing;
* Provides themes, including night mode;
* Annotate PDF;
* Split view;
* Outline editing;
* In-document bookmarking;
* Tabbed style sidebar;
* Clean and powerful toolbar;
* Powerful searching capabilities;

Please feel free to drop us an email ( if any question.

What's New

Version 3.0.24

* bug: opening documents with the focus in the middle of the page
* bug: some links don’t work

Ratings and Reviews

2.9 out of 5

14 Ratings

14 Ratings



I've now used it for two months and it's the best PDF reader I've experience for reading academic articles. It's snappy and reminds me of replacing my web browser with Chrome when it first came out. Can easily add native PDF annotations and search through the existing ones. (And it saves them fast when you close the file. Competitors either do this slowly or, like Skim, use a non-native annotation format that can't be read by other PDF readers.) Draggable tabs. Plays nicely with Zotero. The UI for "find" displays a lot of info intuitively. Everything is just well designed. I haven't yet run into a limitation on the free version, and upgrading to pro is only $20 anyways.

It used to crash from time to time when it came out in late 2017, but this appears to have been fixed as of Feburary 2018! (That's why I'm upgrading my review from 4 stars to 5 stars.) If there are old reviews complaining about crashes, keep that in mind.

I prefer it over these other PDF readers on maxOS that I have tried: FoxIt, Preview, Adobe Acrobat Reader, Skim.

Developer Response

Thanks, good to know that, It's our honour.
We will try our very best!

Difference b/w pro and free?


I was really liking this but I didn’t understand the difference between free and pro. I opened it one time and saw my older pdfs were missing? Maybe there is a limitation on how many you can have in the free version? I didn’t know how to find my old pdfs because there isn’t an easy folder function within the app. I ended up pressing the trash can to see if they were there and it deleted everything I had! There doesn’t seem to be a way to recover them. While this easily lets you add to pdfs (which is great for taking notes during class), I think there are some organizational issues.



I am very disappointed in the functionality of this app. I upgraded to the PRO version. Alike the other people who invested money into this app, I have been bamboozled and mislead. This app does not allow for a PDF to be edited. Very misleading. You can not edit fields of a PDF file. I would like to be refunded.


Kun Wei
5.5 MB
Age Rating
Rated 4+
© Chromiumacx Soft


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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